Assessment of cardiac remodeling in asymptomatic mitral regurgitation for surgery timing: a comparative study of echocardiography and magnetic resonance imaging

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dc.contributor.authorOzdogan, Oner
dc.contributor.authorYuksel, Alper
dc.contributor.authorGurgun, Cemil
dc.contributor.authorKayikcioglu, Meral
dc.contributor.authorYavuzgil, Oguz
dc.contributor.authorCinar, Cahide S.
dc.date.accessioned2019-10-27T21:15:36Z
dc.date.available2019-10-27T21:15:36Z
dc.date.issued2010
dc.departmentEge Üniversitesien_US
dc.description.abstractBackground: Early surgery is recommended for asymptomatic severe mitral regurgitation (MR), because of increased postoperative left ventricular (LV) dysfunction in patients with late surgery. On the other hand, recent reports emphasized a "watchful waiting" process for the determination of the proper time of mitral valve surgery. In our study, we compared magnetic resonance imaging (MRI) and transthoracic echocardiography to evaluate the LV and left atrial (LA) remodeling; for better definitions of patients that may benefit from early valve surgery. Methods: Twenty-one patients with moderate to severe asymptomatic MR were evaluated by echocardiography and MRI. LA and LV ejection fractions (EFs) were calculated by echocardiography and MRI. Pulmonary veins (PVs) were measured from vein orifices in diastole and systole from the tangential of an imaginary circle that completed LA wall. Right upper PV indices were calculated with the formula; (Right upper PV diastolic diameter-Right upper PV systolic diameter)/Right upper PV diastolic diameter. Results: In 9 patients there were mismatches between echocardiography and MRI measurements of LV EF. LV EFs were calculated >= 60% by echocardiography, meanwhile < 60% by MRI in these 9 patients. Severity of MR evaluated by effective regurgitant orifice area (EROA) didn't differ with preserved and depressed EFs by MRI (p > 0.05). However, both right upper PV indices (0.16 +/- 0.06 vs. 0.24 +/- 0.08, p: 0.024) and LA EFs (0.19 +/- 0.09 vs. 0.33 +/- 0.14, p: 0.025) were significantly decreased in patients with depressed EFs when compared to patients with normal EFs. Conclusions: MRI might be preferred when small changes in functional parameters like LV EF, LA EF, and PV index are of clinical importance to disease management like asymptomatic MR patients that we follow up for appropriate surgery timing.en_US
dc.identifier.doi10.1186/1476-7120-8-32en_US
dc.identifier.issn1476-7120
dc.identifier.pmid20704764en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1186/1476-7120-8-32
dc.identifier.urihttps://hdl.handle.net/11454/43556
dc.identifier.volume8en_US
dc.identifier.wosWOS:000282730600001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherBiomed Central Ltden_US
dc.relation.ispartofCardiovascular Ultrasounden_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.titleAssessment of cardiac remodeling in asymptomatic mitral regurgitation for surgery timing: a comparative study of echocardiography and magnetic resonance imagingen_US
dc.typeArticleen_US

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